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java.lang.Exception: Error connecting to the database.Communications link
failure
The last packet sent successfully to the server was 0 milliseconds ago. The
driver has not received any packets from the server.

java.lang.Exception: Error connecting to the database.Communications link
failure
The last packet sent successfully to the server was 0 milliseconds ago. The
driver has not received any packets from the server.

java.lang.Exception: Error connecting to the database.Communications link
failure
The last packet sent successfully to the server was 0 milliseconds ago. The
driver has not received any packets from the server.

java.lang.Exception: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
Details: java.net.ConnectException - Connection refused

java.lang.Exception: Communications link failure
The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
Details: java.net.ConnectException - Connection refused